bending moment arm

简明释义

弯曲力臂;

英英释义

例句

1.In a cantilever beam, the bending moment arm 弯矩臂 is crucial for understanding the load distribution.

在悬臂梁中，弯矩臂 bending moment arm对于理解载荷分布至关重要。

2.During the analysis, we found that the bending moment arm 弯矩臂 was not sufficient to support the additional weight.

在分析过程中，我们发现弯矩臂 bending moment arm不足以支撑额外的重量。

3.The architect designed the bridge with a long bending moment arm 弯矩臂 to ensure stability under heavy loads.

建筑师设计了这座桥，采用了较长的弯矩臂 bending moment arm以确保在重载下的稳定性。

4.Increasing the length of the bending moment arm 弯矩臂 can significantly reduce the force required to lift the load.

增加弯矩臂 bending moment arm的长度可以显著减少提起负载所需的力。

5.The engineer calculated the bending moment arm 弯矩臂 to determine the stress on the beam.

工程师计算了弯矩臂 bending moment arm以确定梁上的应力。

作文

In the field of structural engineering and mechanics, understanding the concept of a bending moment arm is crucial for analyzing how forces interact with materials. A bending moment arm refers to the distance from the point of application of a force to the point about which the moment is being calculated. This distance plays a significant role in determining the magnitude of the bending moment that a structural element experiences when subjected to external loads.When a beam is subjected to a load, it bends, and the bending moment at any section of the beam can be calculated using the formula: Moment = Force × Distance. The distance in this context is the bending moment arm. For instance, if a force is applied at one end of a beam, the bending moment arm will be the length of the beam itself. However, if the force is applied at some point along the beam, the bending moment arm will be the perpendicular distance from the line of action of the force to the point about which the moment is being calculated.One practical example can be seen in the design of bridges. Engineers must calculate the bending moment arm to ensure that the bridge can withstand the loads imposed by vehicles and pedestrians. If the bending moment arm is too short, the bending moment will be larger, potentially leading to structural failure. Conversely, a longer bending moment arm can help distribute the forces more evenly, reducing stress on the materials used in construction.Moreover, the concept of the bending moment arm is not limited to static structures. In dynamic systems, such as machinery or vehicles, the bending moment arm is equally important. For example, in a rotating shaft, the forces acting on the shaft create moments that can lead to bending. Understanding the bending moment arm allows engineers to design safer and more efficient machines by predicting how they will behave under various loading conditions.Furthermore, the bending moment arm can also be affected by the configuration of the structure. For instance, in cantilever beams, where one end is fixed while the other is free, the bending moment arm changes as the load is applied further away from the fixed point. This change must be accounted for in the design process to ensure that the structure can safely carry the intended loads without excessive deformation or failure.In conclusion, the bending moment arm is a fundamental concept in engineering that helps professionals understand how forces affect structures. By comprehensively analyzing the bending moment arm, engineers can design safer, more reliable structures that meet the demands of modern society. Whether in bridges, buildings, or machinery, the importance of this concept cannot be overstated, as it directly influences the integrity and functionality of engineered systems. Understanding the bending moment arm is essential for anyone involved in the fields of engineering and architecture, as it lays the groundwork for effective design and analysis.

在结构工程和力学领域，理解“bending moment arm”的概念对于分析力量如何与材料相互作用至关重要。“bending moment arm”是指从施加力的点到计算力矩的点之间的距离。这个距离在确定结构元件在外部载荷作用下所经历的弯曲力矩的大小中起着重要作用。当梁受到载荷时，它会弯曲，而梁的任何截面的弯曲力矩可以使用公式：力矩 = 力 × 距离来计算。在这个上下文中，距离就是“bending moment arm”。例如，如果一个力施加在梁的一端，则“bending moment arm”将是梁本身的长度。然而，如果力施加在梁的某个点上，则“bending moment arm”将是施力线到计算力矩的点之间的垂直距离。一个实际的例子可以在桥梁设计中看到。工程师必须计算“bending moment arm”，以确保桥梁能够承受车辆和行人的载荷。如果“bending moment arm”太短，弯曲力矩将会更大，可能导致结构失效。相反，较长的“bending moment arm”可以帮助更均匀地分布力量，从而减少建筑材料的应力。此外，“bending moment arm”的概念并不仅限于静态结构。在动态系统中，例如机械或车辆，“bending moment arm”同样重要。例如，在旋转轴中，作用在轴上的力量会产生力矩，导致弯曲。理解“bending moment arm”使工程师能够通过预测机械在各种载荷条件下的表现，设计出更安全、更高效的机器。此外，结构的配置也会影响“bending moment arm”。例如，在悬臂梁中，一端固定而另一端自由，施加载荷时“bending moment arm”会发生变化。这一变化必须在设计过程中考虑，以确保结构能够安全承载预期的载荷，而不会出现过度变形或失效。总之，“bending moment arm”是工程中的一个基本概念，帮助专业人士理解力量如何影响结构。通过全面分析“bending moment arm”，工程师能够设计出更安全、更可靠的结构，以满足现代社会的需求。无论是在桥梁、建筑物还是机械中，这一概念的重要性不容低估，因为它直接影响到工程系统的完整性和功能性。理解“bending moment arm”对参与工程和建筑领域的任何人来说都是必不可少的，因为它为有效的设计和分析奠定了基础。